People of all ages and nationalities sang the song, from wherever they were. Through the power of the internet, and music, Diamond truly brought the world together to remind us that there is still a lot of joy to be had.
The fan videos were collated and the result is the video above.
From individuals locked in their homes, to crowds in stadiums, there's a bit of everything in the video, which was started before the pandemic locked the world down.
Diamond reworded Sweet Caroline this year to encourage people to wash their hands when the pandemic first hit.
"I know we're going through a rough time right now. But I love ya. And I just feel if we sing together we will all feel a little bit better," he said at the time. He tweaked the original lyrics, "Hands, touching hands / Reaching out, touching me, touching you," to "Hands, washing hands / Reaching out, don't touch me, I won't touch you."